:root {
  --bg: #0b0f17;
  --bg-elev: #131a26;
  --bg-elev-2: #1a2334;
  --border: #233044;
  --text: #e7ecf3;
  --text-dim: #8b97a8;
  --accent: #6c7bff;
  --accent-2: #00d3a7;
  --success: #2ecc8f;
  --error: #ff6b6b;
  --radius: 16px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100dvh;
  background: radial-gradient(1200px 600px at 50% -10%, #1a2440 0%, var(--bg) 55%);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial,
    sans-serif;
  -webkit-font-smoothing: antialiased;
  display: flex;
  justify-content: center;
}

.app {
  width: 100%;
  max-width: 480px;
  padding: 48px 20px 32px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

/* Header */
.header {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.logo {
  font-size: 40px;
  line-height: 1;
  filter: drop-shadow(0 6px 16px rgba(108, 123, 255, 0.45));
}

.title {
  margin: 0;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #fff 0%, #b9c2ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.subtitle {
  margin: 0;
  color: var(--text-dim);
  font-size: 15px;
}

/* Action cards */
.actions {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.card {
  position: relative;
  display: flex;
  align-items: center;
  gap: 16px;
  width: 100%;
  padding: 18px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--bg-elev) 0%, var(--bg-elev-2) 100%);
  color: var(--text);
  text-align: left;
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: transform 0.18s var(--ease), border-color 0.18s var(--ease),
    box-shadow 0.18s var(--ease);
}

.card:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  box-shadow: 0 14px 34px rgba(108, 123, 255, 0.18);
}

.card:active {
  transform: translateY(0) scale(0.99);
}

.card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.card[disabled] {
  cursor: progress;
  opacity: 0.85;
}

.card__icon {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  flex: 0 0 auto;
  font-size: 24px;
  border-radius: 12px;
  background: rgba(108, 123, 255, 0.12);
  border: 1px solid rgba(108, 123, 255, 0.25);
}

.card__body {
  display: flex;
  flex-direction: column;
  gap: 3px;
  flex: 1 1 auto;
  min-width: 0;
}

.card__title {
  font-size: 16px;
  font-weight: 600;
}

.card__desc {
  font-size: 13px;
  color: var(--text-dim);
}

/* Spinner */
.card__spinner {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.18);
  border-top-color: var(--accent);
  opacity: 0;
  transition: opacity 0.18s var(--ease);
}

.card.is-loading .card__spinner {
  opacity: 1;
  animation: spin 0.7s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Status message */
.status {
  min-height: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  padding: 13px 15px;
  border-radius: 12px;
  font-size: 14px;
  border: 1px solid var(--border);
  background: var(--bg-elev);
  display: flex;
  align-items: center;
  gap: 10px;
  animation: rise 0.28s var(--ease);
}

.toast--success {
  border-color: rgba(46, 204, 143, 0.4);
  background: rgba(46, 204, 143, 0.1);
  color: #b9f3dc;
}

.toast--error {
  border-color: rgba(255, 107, 107, 0.4);
  background: rgba(255, 107, 107, 0.1);
  color: #ffd2d2;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Footer */
.footer {
  margin-top: auto;
  padding-top: 12px;
  text-align: center;
  color: var(--text-dim);
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.footer__sep {
  opacity: 0.5;
}

.footer__link {
  background: none;
  border: none;
  color: var(--text-dim);
  font: inherit;
  cursor: pointer;
  padding: 0;
  transition: color 0.18s var(--ease);
}

.footer__link:hover {
  color: var(--text);
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}